Accepted for Publication: May 31, 2013.
Published Online: November 27, 2013. doi:10.1001/jamadermatol.2013.5870.
Study concept and design: All authors.
Acquisition of data: Mathias, Colwell.
Analysis and interpretation of data: Mathias, Colwell, Yim, Chen, Fosko.
Drafting of the manuscript: Mathias, Colwell.
Critical revision of the manuscript for important intellectual content: Mathias, Chren, Yim, Reyes, Chen, Fosko.
Statistical analysis: Mathias, Chren, Colwell.
Obtained funding: Mathias, Yim, Reyes.
Administrative, technical, or material support: Mathias.
Study supervision: Mathias, Reyes, Chen.
Conflict of Interest Disclosures: Ms Mathias is an employee of Health Outcomes Solutions, which received funding from Genentech to undertake this research. Drs Chren and Fosko are paid consultants to Genentech, and Dr Fosko is also an investigator and speaker for Genentech. Ms Colwell is a consultant to Health Outcomes Solutions and was previously a consultant to Genentech (although not for this research study). Ms Yim and Drs Reyes and Chen are employees of Genentech and own stock and stock options.
Funding/Support: This study was funded by Genentech Inc.
Role of the Sponsors: The sponsors had no role in the conduct of the study; in the collection of data; or in the preparation of the manuscript. The sponsors had a role in the design of the study; in the analysis and interpretation of data; review of the manuscript.